Linux Basics XK0-006 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   During kernel initialization, the kernel mounts the root filesystem. Which of the following is true about this step?

   • AThe kernel always mounts the root filesystem directly from the disk device specified in the boot loader.
   • BThe kernel requires the root filesystem to be ext4.
   • CThe kernel mounts the root filesystem as read-only initially, then remounts it read-write later.
   • DThe kernel mounts all filesystems listed in /etc/fstab during initialization.
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2. 22foundation · easy

   Which of the following is a responsibility of the kernel during system initialization?

   • AReading the /etc/fstab file to mount all filesystems.
   • BProviding a command-line interface for system administration.
   • CSetting up memory management and process scheduling.
   • DDisplaying the GRUB menu for the user.
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4. 23expert · medium

   A company is migrating from x86_64 servers to ARM-based servers to reduce power consumption. They have a custom kernel module that is compiled for x86_64. What must the administrator do to use this module on the new ARM servers?

   • AUse the module only in user space, not in kernel space.
   • BInstall a compatibility layer to run x86_64 modules on ARM.
   • CRecompile the kernel module for the aarch64 architecture.
   • DUse the module as-is because kernel modules are architecture-independent.
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5. 24application · medium

   A developer asks an administrator: 'When a process opens a file, how does the kernel manage the file access?' Which response correctly describes the kernel's role?

   • AThe kernel translates the file path to an inode and manages the file descriptor table for the process.
   • BThe kernel delegates file access to the systemd service, which handles all I/O.
   • CThe kernel uses the BIOS to read the file directly from the disk.
   • DThe kernel relies on the boot loader to cache files in memory.
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6. 25application · medium

   A server with UEFI firmware is not booting. The administrator notices that the system goes directly to the UEFI shell instead of the boot loader. What is the most likely cause?

   • AThe root filesystem is not mounted.
   • BThe kernel is corrupted.
   • CThe init system is misconfigured.
   • DThe boot loader is not installed or the boot entry is missing.
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